Alybones
New member
Hey all!
I have been having issues with my transmission in my 08 GMC sierra 1500. I recently had my trandsmission rebuilt. And the issue im having now is that my trans temp is hitting 250 degrees (not towing anything) within a 20 minute drive from cold engine and im losing power once it gets to 235 degrees. My truck does have a transmission cooler installed. Im guessing there may be and issue with the solenoid but im at a loss at this point. Any ideas?
I have been having issues with my transmission in my 08 GMC sierra 1500. I recently had my trandsmission rebuilt. And the issue im having now is that my trans temp is hitting 250 degrees (not towing anything) within a 20 minute drive from cold engine and im losing power once it gets to 235 degrees. My truck does have a transmission cooler installed. Im guessing there may be and issue with the solenoid but im at a loss at this point. Any ideas?